📄 curveview.cpp

📁 一个完整的彩票软件的源代码
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// CurveView.cpp : implementation file
//

#include "stdafx.h"
#include "lottery.h"
#include "CurveView.h"
#include "ChildView.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CCurveView dialog
extern CChildView *pCV;

CCurveView::CCurveView(CWnd* pParent /*=NULL*/)
	: CDialog(CCurveView::IDD, pParent)
{
	//{{AFX_DATA_INIT(CCurveView)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
}


void CCurveView::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCurveView)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CCurveView, CDialog)
	//{{AFX_MSG_MAP(CCurveView)
	ON_WM_PAINT()
	ON_WM_HSCROLL()
	ON_WM_VSCROLL()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCurveView message handlers

void CCurveView::OnPaint() 
{
	int w=pCV->m_array.GetSize();
	CPaintDC dc(this); // device context for painting
	if (!m_bGetRect)
	{
		int xWidth=30;
		int yWidth=20;
		GetClientRect(&m_Rect);
		m_leftRect=m_Rect;
		m_leftRect.DeflateRect(0,0,m_Rect.right-xWidth,0);
		m_rightRect=m_Rect;
		m_rightRect.DeflateRect(m_Rect.right-xWidth,0,0,0);
		m_topRect=m_Rect;
		m_topRect.DeflateRect(xWidth,0,xWidth,m_Rect.bottom-yWidth);
		m_bottomRect=m_Rect;
		m_bottomRect.DeflateRect(xWidth,m_Rect.bottom-yWidth,xWidth,0);
		m_centerRect=m_Rect;
		m_centerRect.DeflateRect(xWidth,yWidth,xWidth,yWidth);
		m_bGetRect=TRUE;
	}
	//设置坐标及投影方式
	CRect rect=m_Rect;
	dc.SetMapMode(MM_HIMETRIC);
	dc.SetViewportOrg(rect.left,rect.bottom);
	dc.DPtoLP(&rect);

	//填充背景
	dc.SetBkColor(RGB(64,64,64));
	CBrush bkBrush(RGB(64,64,64));
	dc.FillRect(&rect,&bkBrush);
	
	//设置画笔风格和文字颜色
	dc.SetTextColor(RGB(255,0,0));
	CPen penCurve(PS_SOLID,1,RGB(0,255,0));
 	CPen penCord(PS_SOLID,1,RGB(255,255,255)), *pOldPen;
	CPen bkPen(PS_DOT,1,RGB(100,100,0));

	pOldPen=dc.SelectObject(&penCord);
	//画左部和右部号码，画横线
	int nPosV=GetScrollPos(SB_VERT);
	int nEndV=((nPosV+m_iVLine) > 31)?(31):(nPosV+m_iVLine);
	CRect leftRect=m_leftRect;
	CRect rightRect=m_rightRect;
	CRect centerRect=m_centerRect;
	CRect bottomRect=m_bottomRect;
	dc.DPtoLP(&leftRect);
	dc.DPtoLP(&rightRect);
	dc.DPtoLP(&centerRect);
	dc.DPtoLP(&bottomRect);
	m_iHeightInterval=-centerRect.Height()/m_iVLine;
	m_iWidthInterval=centerRect.Width()/m_iHLine;
	m_iHeightFactor=m_iHeightInterval/pCV->m_iWidth;

	char numBuf[5];
	for (int i=nPosV; i<nEndV; i++)
	{
		itoa(i,numBuf,10);
		dc.TextOut(leftRect.left+100, m_iHeightInterval*(i-nPosV+1)+bottomRect.top,numBuf,strlen(numBuf));
		dc.TextOut(rightRect.left+200, m_iHeightInterval*(i-nPosV+1)+bottomRect.top,numBuf,strlen(numBuf));
		dc.MoveTo(leftRect.right,m_iHeightInterval*(i-nPosV+1)-300+bottomRect.top);
		dc.LineTo(rightRect.left,m_iHeightInterval*(i-nPosV+1)-300+bottomRect.top);
	}
	int nPosH=GetScrollPos(SB_HORZ);
	//画底部期号
	for (i=nPosH; i<m_iHLine+nPosH; i+=5)
	{
		ZeroMemory(numBuf,5);
		itoa(i,numBuf,10);
		dc.TextOut(bottomRect.left+m_iWidthInterval*(i-nPosH),bottomRect.top+100,numBuf,strlen(numBuf));
	}
	//画暗方格
	{
		dc.SelectObject(&bkPen);
		//画横线
		//画竖线
		for (i=nPosH; i<m_iHLine+nPosH; i++)
		{
			dc.MoveTo(bottomRect.left+m_iWidthInterval*(i-nPosH),bottomRect.top+200);
			dc.LineTo(bottomRect.left+m_iWidthInterval*(i-nPosH),rect.top);
		}
	}
	//画走势图
	int iEndH=((nPosH+m_iHLine) > (w - (int)pCV->m_iWidth))? (w - pCV->m_iWidth):(nPosH+m_iHLine);
	dc.SelectObject(&penCurve);
	for (i=nPosV; i<nEndV; i++)
	{
		for (int j=nPosH+1; j<=iEndH+1; j++)
		{
			if (j==iEndH+1 && j==w-(int)pCV->m_iWidth+1) 
			{
				CPen upPen(PS_SOLID,1,RGB(255,0,0));
				CPen downPen(PS_SOLID,1,RGB(255,255,0));
				CPen *old_pen;
				old_pen=(CPen *)dc.SelectObject(&downPen);
				int y = m_iHeightInterval*(i-nPosV+1)-200 + m_iHeightFactor*(int)(pCV->m_pFreq[j-1].f[i-1]) + bottomRect.top;
				dc.MoveTo(leftRect.right + m_iWidthInterval * (j-nPosH-1),y);
				y = m_iHeightInterval*(i-nPosV+1)-200 + m_iHeightFactor*(int)(pCV->m_pFreq[w].f[i-1]) + bottomRect.top;
				dc.LineTo(leftRect.right + m_iWidthInterval * (j-nPosH),y);
				dc.SelectObject(&upPen);
				y = m_iHeightInterval*(i-nPosV+1)-200 + m_iHeightFactor*(int)(pCV->m_pFreq[j-1].f[i-1]) + bottomRect.top;
				dc.MoveTo(leftRect.right + m_iWidthInterval * (j-nPosH-1),y);
				y = m_iHeightInterval*(i-nPosV+1)-200 + m_iHeightFactor*(int)((pCV->m_pFreq[w].f[i-1])+1) + bottomRect.top;
				dc.LineTo(leftRect.right + m_iWidthInterval * (j-nPosH),y);
				dc.SelectObject(old_pen);
				break;
			}
			int y = m_iHeightInterval*(i-nPosV+1)-200 + m_iHeightFactor*(int)(pCV->m_pFreq[j-1].f[i-1]) + bottomRect.top;
			dc.MoveTo(leftRect.right + m_iWidthInterval * (j-nPosH-1),y);
			y = m_iHeightInterval*(i-nPosV+1)-200 + m_iHeightFactor*(int)(pCV->m_pFreq[j].f[i-1]) + bottomRect.top;
			dc.LineTo(leftRect.right + m_iWidthInterval * (j-nPosH),y);
		}
	}
	
	dc.SelectObject(pOldPen);

	bkBrush.DeleteObject();
	penCurve.DeleteObject();
	penCord.DeleteObject();
	bkPen.DeleteObject();
}

BOOL CCurveView::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	int w=pCV->m_array.GetSize();

	m_VScrollInfo.cbSize=sizeof(SCROLLINFO);
	m_VScrollInfo.fMask=SIF_PAGE|SIF_RANGE|SIF_POS;
	m_VScrollInfo.nMin=1;
	m_VScrollInfo.nMax=30;
	m_VScrollInfo.nPage=3;
	m_VScrollInfo.nPos=0;

	m_HScrollInfo.cbSize=sizeof(SCROLLINFO);
	m_HScrollInfo.fMask=SIF_PAGE|SIF_RANGE|SIF_POS;
	m_HScrollInfo.nMin=0;
	m_HScrollInfo.nMax=w-1;
	m_HScrollInfo.nPage=(w-1)/10;
	m_HScrollInfo.nPos=0;

	SetScrollInfo(SB_VERT,&m_VScrollInfo);
	SetScrollInfo(SB_HORZ,&m_HScrollInfo);

	m_iHeightInterval=2000;
	m_iHeightFactor=400;
	m_iHLine=100;
	m_iVLine=9;
	m_bGetRect=FALSE;
	m_Rect.SetRectEmpty();
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}
//-------------响应水平滚动条消息-----------------//
void CCurveView::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) 
{
	// TODO: Add your message handler code here and/or call default
	SCROLLINFO si;
	si.cbSize=sizeof(si);
	GetScrollInfo(SB_HORZ,&si);

	int nOldPos=GetScrollPos(SB_HORZ);
	switch (nSBCode)
	{
	case SB_BOTTOM:
		nPos=si.nMax;
		break;
	case SB_ENDSCROLL:
		nPos=GetScrollPos(SB_HORZ);
		break;
	case SB_LINEDOWN:
		nPos=GetScrollPos(SB_HORZ);
		if ((int)nPos < si.nMax)
			nPos++;
		break;
	case SB_LINEUP:
		nPos=GetScrollPos(SB_HORZ);
		if ((int)nPos > si.nMin)
			nPos--;
		break;
	case SB_PAGEDOWN:
		nPos=GetScrollPos(SB_HORZ);
		nPos+=si.nPage;
		if ((int)nPos > si.nMax)
			nPos=si.nMax;
		break;
	case SB_PAGEUP:
		nPos=GetScrollPos(SB_HORZ);
		nPos-=si.nPage;
		if ((int)nPos < si.nMin)
			nPos=si.nMin;
		break;
	case SB_THUMBPOSITION:
		break;
	case SB_THUMBTRACK:
		break;
	case SB_TOP:
		nPos=si.nMin;
		break;
	}
	if (nOldPos != (int)nPos)
	{
		EraseCenterRect();
		SetScrollPos(SB_HORZ,nPos);
		ReDrawCenterRect();
		InvalidateRect(&m_bottomRect);
		InvalidateRect(&m_topRect);
	}
}
//-------------响应竖直滚动条消息-----------------//
void CCurveView::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) 
{
	SCROLLINFO si;
	si.cbSize=sizeof(si);
	GetScrollInfo(SB_VERT,&si);

	int nOldPos=GetScrollPos(SB_VERT);

	switch (nSBCode)
	{
	case SB_BOTTOM:
		nPos=si.nMax;
		break;
	case SB_ENDSCROLL:
		nPos=GetScrollPos(SB_VERT);
		break;
	case SB_LINEDOWN:
		nPos=GetScrollPos(SB_VERT);
		if ((int)nPos < si.nMax)
			nPos++;
		break;
	case SB_LINEUP:
		nPos=GetScrollPos(SB_VERT);
		if ((int)nPos > si.nMin)
			nPos--;
		break;
	case SB_PAGEDOWN:
		nPos=GetScrollPos(SB_VERT);
		nPos+=si.nPage;
		if ((int)nPos > si.nMax)
			nPos=si.nMax;
		break;
	case SB_PAGEUP:
		nPos=GetScrollPos(SB_VERT);
		nPos-=si.nPage;
		if ((int)nPos < si.nMin)
			nPos=si.nMin;
		break;
	case SB_THUMBPOSITION:
		break;
	case SB_THUMBTRACK:
		break;
	case SB_TOP:
		nPos=si.nMin;
		break;
	}
	if (nOldPos != (int)nPos)
	{
		EraseCenterRect();
		SetScrollPos(SB_VERT,nPos);
		ReDrawCenterRect();

		InvalidateRect(&m_topRect);
		InvalidateRect(&m_rightRect);
		InvalidateRect(&m_leftRect);
	}
}

//----------------删除中心区域----------------//
void CCurveView::EraseCenterRect()
{
	int w=pCV->m_array.GetSize();
	CDC *pDC=GetDC();
	//设置坐标及投影方式
	CRect rect=m_Rect;
	pDC->SetMapMode(MM_HIMETRIC);
	pDC->SetViewportOrg(rect.left,rect.bottom);
	pDC->DPtoLP(&rect);

	//填充背景
	pDC->SetBkColor(RGB(64,64,64));
	
	//设置画笔风格和文字颜色
 	CPen penErase(PS_SOLID,1,RGB(64,64,64)),*pOldPen;
	pOldPen=pDC->SelectObject(&penErase);
	
	int nPosV=GetScrollPos(SB_VERT);
	int nEndV=((nPosV+m_iVLine) > 31)?(31):(nPosV+m_iVLine);
	CRect leftRect=m_leftRect;
	CRect rightRect=m_rightRect;
	CRect centerRect=m_centerRect;
	CRect bottomRect=m_bottomRect;
	pDC->DPtoLP(&bottomRect);
	pDC->DPtoLP(&leftRect);
	pDC->DPtoLP(&rightRect);
	pDC->DPtoLP(&centerRect);
	m_iHeightInterval=-centerRect.Height()/m_iVLine;
	m_iWidthInterval=centerRect.Width()/m_iHLine;
	m_iHeightFactor=m_iHeightInterval/pCV->m_iWidth;

	int nPosH=GetScrollPos(SB_HORZ);
	
	int iEndH=((nPosH+m_iHLine) > (w - (int)pCV->m_iWidth))? (w - pCV->m_iWidth):(nPosH+m_iHLine);
	for (int i=nPosV; i<nEndV; i++)
	{
		for (int j=nPosH+1; j<=iEndH+1; j++)
		{
			if (j==iEndH+1 && j==w-(int)pCV->m_iWidth+1) 
			{
				int y = m_iHeightInterval*(i-nPosV+1)-200 + m_iHeightFactor*(int)(pCV->m_pFreq[j-1].f[i-1]) + bottomRect.top;
				pDC->MoveTo(leftRect.right + m_iWidthInterval * (j-nPosH-1),y);
				y = m_iHeightInterval*(i-nPosV+1)-200 + m_iHeightFactor*(int)(pCV->m_pFreq[w].f[i-1]) + bottomRect.top;
				pDC->LineTo(leftRect.right + m_iWidthInterval * (j-nPosH),y);
				y = m_iHeightInterval*(i-nPosV+1)-200 + m_iHeightFactor*(int)(pCV->m_pFreq[j-1].f[i-1]) + bottomRect.top;
				pDC->MoveTo(leftRect.right + m_iWidthInterval * (j-nPosH-1),y);
				y = m_iHeightInterval*(i-nPosV+1)-200 + m_iHeightFactor*(int)((pCV->m_pFreq[w].f[i-1])+1) + bottomRect.top;
				pDC->LineTo(leftRect.right + m_iWidthInterval * (j-nPosH),y);
				break;
			}
			int y = m_iHeightInterval*(i-nPosV+1)-200 + m_iHeightFactor*(int)(pCV->m_pFreq[j-1].f[i-1]) + bottomRect.top;
			pDC->MoveTo(leftRect.right + m_iWidthInterval * (j-nPosH-1),y);
			y = m_iHeightInterval*(i-nPosV+1)-200 + m_iHeightFactor*(int)(pCV->m_pFreq[j].f[i-1]) + bottomRect.top;
			pDC->LineTo(leftRect.right + m_iWidthInterval * (j-nPosH),y);
		}
	}
	
	pDC->SelectObject(pOldPen);
	penErase.DeleteObject();
}
//-----------重画中心区域----------------//
void CCurveView::ReDrawCenterRect()
{
	int w=pCV->m_array.GetSize();
	CDC *pDC=GetDC();
	//设置坐标及投影方式
	CRect rect=m_Rect;
	pDC->SetMapMode(MM_HIMETRIC);
	pDC->SetViewportOrg(rect.left,rect.bottom);
	pDC->DPtoLP(&rect);

	//填充背景
	pDC->SetBkColor(RGB(64,64,64));
	
	//设置画笔风格和文字颜色
	CPen penCurve(PS_SOLID,1,RGB(0,255,0)),*pOldPen;
	pOldPen=pDC->SelectObject(&penCurve);
	
	int nPosV=GetScrollPos(SB_VERT);
	int nEndV=((nPosV+m_iVLine) > 31)?(31):(nPosV+m_iVLine);
	CRect leftRect=m_leftRect;
	CRect rightRect=m_rightRect;
	CRect centerRect=m_centerRect;
	CRect bottomRect=m_bottomRect;
	pDC->DPtoLP(&bottomRect);
	pDC->DPtoLP(&leftRect);
	pDC->DPtoLP(&rightRect);
	pDC->DPtoLP(&centerRect);

	int nPosH=GetScrollPos(SB_HORZ);
	
	int iEndH=((nPosH+m_iHLine) > (w - (int)pCV->m_iWidth))? (w - pCV->m_iWidth):(nPosH+m_iHLine);
	for (int i=nPosV; i<nEndV; i++)
	{
		for (int j=nPosH+1; j<=iEndH+1; j++)
		{
			if (j==iEndH+1 && j==w-(int)pCV->m_iWidth+1) 
			{
				CPen upPen(PS_SOLID,1,RGB(255,0,0));
				CPen downPen(PS_SOLID,1,RGB(255,255,0));
				CPen *old_pen;
				old_pen=(CPen *)pDC->SelectObject(&downPen);
				int y = m_iHeightInterval*(i-nPosV+1)-200 + m_iHeightFactor*(int)(pCV->m_pFreq[j-1].f[i-1]) + bottomRect.top;
				pDC->MoveTo(leftRect.right + m_iWidthInterval * (j-nPosH-1),y);
				y = m_iHeightInterval*(i-nPosV+1)-200 + m_iHeightFactor*(int)(pCV->m_pFreq[w].f[i-1]) + bottomRect.top;
				pDC->LineTo(leftRect.right + m_iWidthInterval * (j-nPosH),y);
				pDC->SelectObject(&upPen);
				y = m_iHeightInterval*(i-nPosV+1)-200 + m_iHeightFactor*(int)(pCV->m_pFreq[j-1].f[i-1]) + bottomRect.top;
				pDC->MoveTo(leftRect.right + m_iWidthInterval * (j-nPosH-1),y);
				y = m_iHeightInterval*(i-nPosV+1)-200 + m_iHeightFactor*(int)((pCV->m_pFreq[w].f[i-1])+1) + bottomRect.top;
				pDC->LineTo(leftRect.right + m_iWidthInterval * (j-nPosH),y);
				pDC->SelectObject(old_pen);
				break;
			}
			int y = m_iHeightInterval*(i-nPosV+1)-200 + m_iHeightFactor*(int)(pCV->m_pFreq[j-1].f[i-1]) + bottomRect.top;
			pDC->MoveTo(leftRect.right + m_iWidthInterval * (j-nPosH-1),y);
			y = m_iHeightInterval*(i-nPosV+1)-200 + m_iHeightFactor*(int)(pCV->m_pFreq[j].f[i-1]) + bottomRect.top;
			pDC->LineTo(leftRect.right + m_iWidthInterval * (j-nPosH),y);
		}
	}
	pDC->SelectObject(pOldPen);
	penCurve.DeleteObject();
}
//-------------响应按键消息----------------//
BOOL CCurveView::PreTranslateMessage(MSG* pMsg) 
{
	if (pMsg->message==WM_KEYDOWN)
	{
		int nChar=pMsg->wParam;
		int w = pCV->m_array.GetSize() - pCV->m_iWidth;
		BOOL bShouldRedraw=FALSE;
		switch (nChar)
		{
			case VK_SUBTRACT:
				if (m_iVLine < 30)
				{
					m_iVLine++;
					bShouldRedraw=TRUE;
					if (m_iHLine < w)
					{
						m_iHLine++;
						bShouldRedraw=TRUE;
					}
				}
				break;
			case VK_ADD:
				if (m_iVLine > 2)
				{
					m_iVLine--;
					bShouldRedraw=TRUE;
					if (m_iHLine >1) 
					{
						m_iHLine--;
						bShouldRedraw=TRUE;
					}
				}
				break;
			case VK_F5:
				bShouldRedraw=TRUE;
				break;
			case VK_LEFT:
				OnHScroll(SB_LINEUP,0,NULL);
				break;
			case VK_RIGHT:
				OnHScroll(SB_LINEDOWN,0,NULL);
				break;
			case VK_UP:
				OnVScroll(SB_LINEDOWN,0,NULL);
				break;
			case VK_DOWN:
				OnVScroll(SB_LINEUP,0,NULL);
				break;
		}
		if (bShouldRedraw)
			 Invalidate();
	}
	return CDialog::PreTranslateMessage(pMsg);
}
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